Patent US3420041A successfully refreshed from Google Patents.
US3420041A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lawn mower
Assignee: Lawn Boy Inc
•
Filing: 1965-07-12
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Granted: 1969-01-07
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Expires: 1985-07-12
Abstract
No abstract record available.
Inventors
- 👤 Finn T Irgens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:12
CPC Classifications
A; A01; A01D; A01D34/00; A01D34/01; A01D34/412; A01D34/63; A01D34/71; A01D2101/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2675661A
Cited
US3118267A
Cited
US2843991A
Cited
US3020693A
Cited
US3178872A
Cited
US3220170A
Cited
US3292351A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-07 | 1972-07-08 | 1973-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-07 | 1976-07-08 | 1977-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-07 | 1980-07-08 | 1981-01-07 | $7700.00 | Window Closed / Lapsed |